Recent content by flecom

man that would be awesome, I was watching the CNN documentary about the 90s and was thinking to myself, man, nobody will ever again know what it was like to dial-in to prodigy and see all the menus and stuff, AOL's full client, etc... would be great if someone could emulate that... the modern...

I put one of these in my 1400 without issue https://www.amazon.com/Zheino-Solid-State-Drive-Laptop/dp/B00QWZQ43Y

ok well now it boots fine when it's plugged in, unplug it and it continues to run on battery... but if I try to start it on battery I can hear the drive trying to spin up over and over but won't start (battery is sitting ~6.4VDC and dips to ~6.2VDC when the drive tries to spin up)

ok, the "top left" pins of the LT1179 would be 16 and 15 which is D out and D inverting input the negative side of the cap has continuity to D inverting input (pin 15) positive side of the cap seems to have continuity to D non-inverting input (pin 14), at least the test pad that had continuity...

there was a test pad right near it after a couple more vias I verified continuity is just fine so I don't think a bad trace is the issue at least not coming off that cap... I did notice however I replaced the 4.7uF cap by one of the voltage regulators with a 47uF cap (doh!) so I replaced it...

also there isn't a 10uF cap near the buttons, just 2 1uF and 1 47uF cap... I found it goes to a via and I seem to have continuity

so the cap you are referring to is C26? the negative leg has continuity to U2L but I can't quite figure out where the positive leg of C26 is supposed to go, it's kind of covered by the keyboard ribbon connector

I used an IDE to mSATA adapter and a little 120GB mSATA SSD I had laying around in my wallstreet, works great!

I will check the traces on that cap, thanks for the info!

anything ever come of this? would love to just use an Opi connected directly to the serial port as a bridge without having to have a separate localtalk > ethernet adapter too

I'm going to open it up and check those out, I left the batteries out for ~24 hours, reconnected the main battery and it came right up... so not sure if that changes the diagnosis

So I recently refurbished my backlit portable, cleaned up and recapped the logic board, and replaced the original battery with a 6v 4.5ah lead acid battery... was working great no issues... shut it down, plugged it in to charge overnight and now it won't turn on... checked battery voltage is ok...

well how is it going to reference if you don't know what your battery voltage is going to be? battery could be anywhere from 7.5v if fully topped off till whatever the machine knocks out at, you can discharge a 6v SLA under load till about 5.4v a couple diodes would do it, I am just curious...

particular reasoning? I know there is an LT1070 in there, which is rated for 60v, obviously the caps in the input are not rated that high but still... mind you I am talking about the battery connection, not the power inlet in the back... I can use a buck converter to bring down the 8.4 to 7.5v...

So I have been doing some reading about the Macintosh Portable and it's power supply and batteries... from what I have read it seems that you can actually turn on the portable from the 9V backup battery and run it for a moment (sans hard drive since the 9v can't sink that much current), is it...